The intestinal protozoan parasite Entamoeba histolytica causes amebic
dysentery and amebic liver abscess, and ranks third world-wide among p
arasitic causes of death. The application of molecular techniques to t
he study of this organism have led to major advances in understanding
the pathophysiology of amebic infection. This article reviews what is
currently known about the pathogenesis, clinical manifestations, diagn
osis, and treatment of amebiasis.